China
This paper is concerned with invariants for distributional chaos of type 212 in non-autonomous discrete system (X,f1,∞) which converges uniformly and proves that f1,∞ is DC212 if and only if f1,∞[k] is DC212 for any k∈N. This result partly answers the questions posed by Wu and Zhu (Appl Math Lett 26:432–436, 2013).
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